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Andreas Rheinhardt c8b1c9f97a avfilter/vf_find_rect: Don't make frame writable unnecessarily 
AVFrame.metadata is always owned by its AVFrame, it is not shared
in the first place, so one does not need to make the frame writable
to modify it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-08-15 22:49:06 +02:00
compat compat/cuda: add __expf() implementation 2021-08-14 15:06:47 +02:00
doc avfilter/avf_showspectrum: add unwrapped phase data mode 2021-08-15 17:01:11 +02:00
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools qsvdec: add support for HW_DEVICE_CTX method 2021-08-11 13:45:36 -03:00
libavcodec avcodec/h264_sei: fix H.274 film grain parsing 2021-08-15 13:15:21 -03:00
libavdevice lavd/lavfi.c: Set time_base for 608 cc to container time_base. 2021-08-02 14:00:52 +02:00
libavfilter avfilter/vf_find_rect: Don't make frame writable unnecessarily 2021-08-15 22:49:06 +02:00
libavformat avformat/isom_tags: prefer in24 for 24bit PCM in MOV 2021-08-14 20:19:51 +03:00
libavutil lavu/internal: add FF_FIELD_AT(). 2021-08-14 09:17:45 +02:00
libpostproc postproc/postprocess: Remove legacy cruft 2021-07-29 22:02:06 +02:00
libswresample (postproc|swresample)/version: Don't include libavutil/avutil.h 2021-07-29 22:02:05 +02:00
libswscale avutil/internal, swresample/audioconvert: Remove cpu.h inclusions 2021-07-22 14:33:45 +02:00
presets
tests FATE: add a test for sliced scaling 2021-08-08 19:26:05 +02:00
tools FATE: add a test for sliced scaling 2021-08-08 19:26:05 +02:00
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.gitignore avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
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.travis.yml Merge commit '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
Changelog avfilter: add afwtdn filter 2021-07-24 12:24:40 +02:00
configure configure: [loongson] adjust MMI check in configure 2021-08-10 16:16:06 +02:00
CONTRIBUTING.md
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CREDITS
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS avformat: add Argonaut Games CVG demuxer 2021-05-12 20:25:50 +10:00
Makefile FATE: add a test for sliced scaling 2021-08-08 19:26:05 +02:00
README.md
RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00

README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides a mean to alter decoded Audio and Video through chain of filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.

Tools

  • ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
  • ffplay is a minimalistic multimedia player.
  • ffprobe is a simple analysis tool to inspect multimedia content.
  • Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Coding examples are available in the doc/examples directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.